Dishwashing machine



April 1929 G. s. CLARKSON DISHWASHING MACHINE Original Filed Nov. 6. 1924 1 fr/J/ nl/z r Patented Apr. 3B,

UNITED GUY t3. lTlftlhQRKElLlll,

lti'r, hIAhl'liWtlltlA,

tlfihlADA, .ASfiIGNOR, BY MESNE ASSIGN- MENTS, 1'0 ELEUTRMIJ ISHWAQHEREHLIMITED, OF WINNIIEG, CANADA.

IllItilll-ll"W..

.ue MAtL'HINE.

Application tiled l l'h t'ttfttllltll lhlhtlt, lterial Ito. $48,235. Renewed October 6, 1928.

The invention relates to iinprorenients in dish Washing machines and an ohyect oi the invention is to provide a sprayingdevice for initially washing oil any foreign material it adhering to or lodged on the dishes. and Whilst the said dishes are in the machine and to arrenoge the machine such that the forei iuaterial can be drained directly from the machine through a drain relive provided in 10 the how of Water utilized. i .iproying pur pose s, such construction wording the nude sirahle Work of hating" to priinurily scrape. the dishes hefore lacing; thorn in the machine.

A further UbJGCh of the intention is to utilize the aforesaid spreying 6e the machine to the required hei l Water utilised for washing; purposes provide a sightgluss for dccrinim e height of the Water hp observation end to or reuse the drain value so that it con he rendily closed to maintain the Washing outer in the machine.

A further object is to provide inochiue wherein the dishes, suhsequent to Washing them, can he rinsed, this hein ucconu ilished in my machine by utilizing the spruyer oud opening the drain valve.

A further ohjeot ot' the in" range the sprayer so that l l machine sproyed to main clesn.

ii. further ohiect of the invention to con struct the various parts so thut they can he readily replaced or repaired there is very littleiliahility out of order. end such that the vi utions can he quickly learner, i cut hy the storage housewille.

ll ith chore more imp ininor ohjects in VlEW Wlllt3.l more apparent as the 'deecripi the invention consists essentioll Ell entice to c Jr of the ll the same nd such that in getting ions open curried a r more particularly deocrihed, heino" had to the accompanying "Willljll Fig. l. is a side "Vl'B'W of a with my invention. m

.2; is a plan VlBW thereoi'. a

Fig. 3 is a View showing the cover oi machine open.

l 'ip'. it is an enlar 'ed detuiied tional View at el l Figure w Fig. 5 is a horizontal scctionul new .ut ti -5" Figure at.

tical tit a further sprayer propeller aforesaid ."form Fig. 6 is an enlar ed detailed vertical sectional view at fi -13 igure 2.

Fig. 7 is an enlarged detailed vertical sectional View at 7-7 Figure 1.

Fig. 8 is an enlarged detailed vertical sectional viciv through the sight glass and parts associated therewith.

Ji in". I9 is uperspective View of the catch essociated with the valve rod.

lll is a perspective "view of the end of one of thesprayer tubes.

Fig. 11 is a persplegtive View of the end of to I In the drawing like characters of reference indicate corresponding parts in the several ligurcs.

in the present machine I have not shown the cache for the dishes or the-propeller and driving mechanism therefor and as utilized for hittingthe Water from the bottom of the machine and forcing it through the dishes suspended in the racks. The rocks and the the subject matter of sepurste patent applications which are now pending under Serial Nos. 664,762 and tltl l-fifil tiled tl1e25th day of September, 1923. lie so for as the present machine is concerned it is to he understood that the parts herein. disclosed are utilized for primarily .spruying the dishes introduced into the machine to remove foreign substances therefrom end drain the came away, then for introducinn the necessary quantity of water in the machine for washing purposes and finally for draining out such Water and rinsing the c ushed dishes as "well as the interior of the Wushinu compartment.

The hotly l of the machine in which the to he Washed are placed, is cylindrical end has a closed. bottom and an open top and is supported by suitable legs 2 which are fitted with casuersB as shown. The open top of the niuchine hody is closed by a. cover 4 which is titted with a handle 5 and a down turned flange 8 adapted to telescope into the top end oi the hody.

The cover carries a rotary sprayer indicated geherally by the reference numeral 7 which fed with Water under pressure which p co to the machine through the hose connection 8 end is led to the sprayer through it speciul type of hinge 9 employed also to hingedly connect the cover to the body 1.

The hinge comprises a U-shaped strap 10 riveted et 11 to the cover and having the ends thereof outwardly directed and terminating in horizpntally aligned, spaced bearings 12 and 13. The bearing 13 has the outer side thereof formed to provide a screw threaded boss or nipple 14. which is provided with a duct 15 communicating with-a further duct 16, the duct 16 being an internal one formed in the strap and having the inner end thereof opening to the interior of the cover as shown best in Figure 4. y

A pair of straps 17 and 18 are permanently secured to the side of the machine body and terminate in opposing bearings 19 entered between the ends of thestrap 10. A hinge pin 20 passes through aligned holes in the bearings 12 and 19 and enters the bearing 13', the inner end of the pin being screw threaded into the latter hearing as indicated at 21, but being entirely clear of the duct 16. One end of the hose 8 is provided with a coupling 22 which screw threads on to the nipple and the other'en'd thereof is fitted with suit-able means 23 for attaching the hose to a water service ta according to the above arrangement, the cover is hinged to the body 1 and water is passed to the interior of the cover from the hose 8 by way of the hinge.

Centrally within the cover I locate a dis tributing head 24L whichis fastened firmly to the cover by a screw 25 screwing into the upper end of the head. Here it will be observed that the head is provided with an interior passage 26 which is connected by means of a pipe 27 with the inner end of'the duct 16 and further that the head is provided with a contracted portion 28 forming a short spindle and beneath the spindle with a contracted screw threaded stud .29. On the spindle I mount the rotaryspraycr 7, the circular body part 30 of the sprayer being held rotatably in place by a nut 31 screw threaded on .to the stud and screwed tightly against the shoulder formed at the lower end of the spindle.

The body of the sprayer is provided on the inner side with a circumferentially directed channel 32 surrounding the spindle and this channel is at all times in direct communication with radially disposed duets 33 formed in the spindle and leading from the passage 26. Radiating horizontal holes 3a are drilled through the body member 30 and communicate with the channel 32 and further vertical- 1y disposed holes 35 are drilled upwardly in tie body member 30 and communicate with the holes 34;. Bent spraying tubes 36, 37 and 38 of varying length are provided, these having their inner ends screw threaded into the holes 34 and their outer ends somewhat down turned.

From the above arrangement it will be ob vious that the water passing to the machine through the hose 8 wlll enter the sprayer and cause the same to rotate and will be sprayed by the tubes andthe holes 35 into the lower part of the container 1. It will be noted that the tubes are of varying length. This together with the provision of the holes 35 distributes the water throughout the entire area of the container.

I have found it desirable to make the outer ends of the tubes 36 and 38 as best shown in Figure 10 and the outerend of the tube 37 as shown in Figure 11.- All the tubes have their ends cut off at a wide angle and the ends arethen pressed together to provide a comparatively long, narrow, inclined outlet 39 on the under side and end thereof and the tube 37 is provided with a further slit or outlet 10 in the top side. The water emanating from the slots spreads in a fan shape and as the slots are narrow and the pressure is comparatively high, the water has a considerable velocity. The upwardly direct-ed spray of water, through the slot 40 is utilized for rinsing oil the inner side of the cover 4.

A drain pipe 41 leads from the bottom of the container or tank 1 and has the outer'end thereof extending through and supported by a bracket 42 secured to the bottom of the container and communicating with avalvecasing 43, the valve casing being provided with a screw threaded boss 44 screw threading into the end of the drain pipe (see Figure 7 This casing is more or less cylindrical and sits in an upright position adjacent the side of the machine and has the lower end thereof screw threaded to receive a disc like valve seat 45, the open centre of the seat forming an outlet 46 for the drain water. The upper end of the casing is fitted with a stufiing box 17, of any suitable design and a valve rod 48 passes slidably through the stuffing box and has the lower end thereof carrying a valve 49 adapted to enga e the valve seat. In the present instance the valve is connected to the valve rod by a ball and socket joint 50 of well known design. This arrangement permits the valve to seat tightly. The ower end of the rod is provided with a cross pin 51 on which I place a washer 52 and a spring 53 encircles the rod and engages the washer and the upper end of the casing, and normally holds the valve seated,

The upper end of the rod passes slidably through a guide 54 and has the end thereof out turned to form a hand grip 55. The guide is permanently attached to the side of the casing 1 and when the handle is resting on the guide, the valve is closed. Adjoining the guide I locate an upstanding web 56 which is notched as indicated at 57 to provide a catch for the handle when the same is raised, it being here understood that one grips the handle and raises it sufficiently far to permit the handle to be passed into the catch. In this position of the handle, the valve is open. The rod 48 as shown, is made from upper and lower lengths screw threaded together at 48'.

4 seat 45 has been unscrewed, the lower end of the rod can be unscrewed and the valve and parts associated therewith ulled out;

Associated with the mac ine' I provide a sight glass 58 wherebythe attendant can visibly determine the height of water in the machine. This sight lass is carried,- in the pres ent instance, by t e valve casing, the lower end thereof being seated in the upper end of an elbow 59 screw threading into the casing, and the upper end thereof being seated within a vent tube 60. The glass isenclosed within a metal casing which protects the same, and the casing is supplied with a vertically disposed sight opening 62f Assuming that the dirty dishes to be washed have been placed in the machine, it be ing unnecessary to scrape them, one initially sprays them with hot water passed to the ro tary sprayer through the hose 8, the valve 49 being at this time open. This initial sprayin efiectively cleans ofi the scrapings and suc pass out with the spraying water through the pipe 41, the valve and the opening 46. After spraying, the attendantreleases the handle from the catch and turns the valve rod to allow the valve 49 to seat, it being observed that the seated valve is below the sight glass elbow connection. He then permits hot water to enter the machine through the sprayer until it is at the desired level in the bottom of the machine, this being observed through the slot 62 of the sight glass.

When sufiicient water is in the machine, he

closesthe tap or such like connected with the hose and proceeds with the washingof the dishes, such bein accomplished by a rotary propeller in the ottom of the machine and fully shown and described in my co-pending the water from thecasin or tank and furtherwater is then introduce through the hose 8 and sprayer to finally rinse the dishes and the interior of the top. The rinse water runs out the drain pipe as the valve is at this time open, and when the rinsing has been completed, the cover is opened and the clean dishes removed from the machine.

B primarily sprayin the dirty dishes and disc arging the initial dirty spraying water from the machine, I have much cleaner water in the machine to do the actual washing with, and by finally rinsing the dishes after the dirty washing water has been drained out, I am able to have the dishes perfectly clean at the end of the operation. e

. What I claim as my invention is A washing machine comprising a tank, a cover, a spraying device attached to the inner side of the'cover, a U-shaped strap attached to the cover with the ends of the strap formed to provide aligned bearings projectin beyond the cover, one of said bearings ing formed at its outer end to provide a nipple having a fluid passage adapted for connectlon ,to a source of fluid supply and communicatduct to the spraying device to supply fluid to e the latter, beanng members carried by the tank and aligned with the bearing members of thecover, and a pin passing through and hingedly connecting the two sets of bearings. Signed at Winnipeg, this 7th day of August 1924.

GUY S. CLARKSON. 

